DSP采用TMS320DM6441,之前的PCB板仿真器连接ARM核和DSP核都正常,但是现在新做的板连接ARM核没问题,连接DSP失败,提示信息如下:
Error 0x80000240/-275
Fatal Error during: Initialization, OCS,
This error was generated by TI's USCIF driver.
SC_ERR_SCAN_POLL_BUSY <-275>
The attempt to poll a target device exceeded its timeout limit.
The utility or debugger has requested that a target device be
repeatedly accessed for a specific data or status value.
This has failed because the built-in limit for the maximum number
of attempts when polling the JTAG scan-path has been exceeded.
Board Name: DM6446 XDS560 Emulator
Cpu Name: C6400PLUS_0
Abort: Close Code Composer Studio.
Retry: Try to connect to the target again.
Cancel: Remain disconnected from the target
Diagnostic: Run diagnostic utility.
Shine:
新板在电路上做修改了吗? GEL文件加载了吗?在GEL文件里ARM核要reset一下DSP核
lisong yao:
回复 Shine:
电路未做修改,GEL文件也加载了。之前做的几回板是一直可以的,但是现在两回一直存在这问题。是GEL文件的问题还是硬件的问题呢?
Shine:
回复 lisong yao:
如果连接新板子的操作步骤和调试环境跟连接旧板时一模一样的话,那硬件方面的可能性比较大,检查一下焊接是否有问题。
lisong yao:
回复 Shine:
板子焊接也没有问题,因为反复检查过。
lisong yao:
回复 lisong yao:
并且烧写程序也能正常运行,仿真器为合众达的XDS560PLUS,就是仿真时连接不上。
Shine:
回复 lisong yao:
有没有量过JTAG口信号?
lisong yao:
回复 Shine:
没有。